Relinking FCPX multicam media

I did a multicam project in FCPX with the 2 media files temporarily stored on my local harddrive. I had a copy of these exact same files with different filenames on an external hdd. As I updated FCPX to the new library management I wanted to clean up and link the clips to the correct external files.

1) I updated FCPX to 10.1.1

2) I updated my events and projects

-everything was fine-

3) In my project I selected BF3 Sharqi coop_1a and BF3 Sharqi coop_1b and relinked these files to Sharqi_1a and Sharqi_1b

4) Now my project is broken and files are reported as missing, even though

-selecting the clips (still with their old names) plays them back fine

-inspector file information reports a green dot next to original files

I solely used multicam in this project so it's hard to judge wether the relinking didn't work or wether the multicam clip doesn't recognize the relinked files it consists of.

Any help in fixing this would be greatly appreciated.

Btw, I did not create proxy media for the multicam clip.